Determination of penicillins with mercurochrome.

Automated method for determination of penicillins, cephalosporins, and penicillinases.

The microiodometric assay of Novick for penicillinase was adapted to the Technicon Autoanalyzer system. With this automated method, it is possible to analyze almost 60 samples per hr. Two different procedures are described: in the first, the samples were incubated with substrate in the machine under standardized conditions; in the second, samples were incubated outside the Autoanalyzer and assa...

Biosynthesis of penicillins; new crystalline biosynthetic penicillins.

Paper III (1) in this series describes several tests which were found to be useful in determining whether a given compound is utilized by the mold in penicillin formation. To provide proof of the incorporation of various acyl groups into the penicillin molecule and to be able to determine the chemical characteristics and biological properties of the various penicillins, isolation and crystalliz...

Mercurochrome in Leprosy a Corrigendum

per kilogramme of body-weight, which roughly corresponds to 19 c.cm. and not 17 c.cm. as erroneously stated. And, in the conclusions on page 128, the dosages stated in paras 4, 5, and 7, should read as 5.0 milligrammes, 3.75 milligrammes and 3.75 "milligrammes respectively. We are grateful to Dr. Elliot for the trouble he has taken to point out the errors. But, we regret to note that, he attrib...

The Dosage of Intravenous Mercurochrome

Treatment of Bacterial Endocarditis with Oral Penicillins.